#include <stdio.h>
extern int Strcmp(const char x[],const char y[])
{
	int i;
	for(i=0;x[i]!=0||y[i]!=0;i++)
	{
	  if(x[i]>y[i])
	    return 1;
	  if(x[i]<y[i])
	    return -1;
    }
    return 0;      
}  
int main ()
{
	char x[]="abc";
	char y[]="ab";
	printf("%d",Strcmp(x,y));
}
